Week of Events
CGCA Seminar – Dr. Logan Prust
Frame-Dragging Reveals Central Engine of a Superluminous Supernova
Dr. Logan Prust
Center for Computational Astrophysics - Simons Foundation
Type I superluminous supernovae (SLSNe-I) are an order of magnitude brighter than standard supernovae, with the internal power source for their luminosity still unknown. The central engines of SLSNe-I are hypothesized to be magnetars, but many SLSNe-I light curves exhibit multiple bumps or peaks that are unexplained by the standard magnetar model.
Physics Colloquium – Dr. Qiuyan Chen
Effect of Phosphorylation Barcodes on Arrestin Binding to a Chemokine Receptor
Dr. Qiuyan Chen
Assistant Professor of Biochemistry & Molecular Biology
Indiana University School of Medicine
Cells often fine-tune their responses to signals through chemical tags called phosphorylation 'barcodes' placed on receptors at the cell surface. Different G-protein coupled receptor (GPCR) kinases (GRKs) add these barcodes at different sites, but how these patterns influence arrestins — key proteins that control receptor signaling and trafficking — has been unclear.
Coffeeshop Astrophysics – What You Probably Don’t Know About AI
What You Probably Don't Know About AI Speakers: Ronan Humphrey, Adam Opperman, Pratyusava Baral Over the last century, computing in science has changed from human computers doing calculations by hand to supercomputers that can perform over 1018 (that’s 1,000,000,000,000,000,000!) operations …